Heat, drought and floods are growing security risks, Western defense officials say, feeding instability and violence that could prove costly in the long term.
A new study suggests that the NOVA1 gene may have been a key player in the evolution of human language.
A core group of so-called disease detectives, who track outbreaks, was apparently spared. But other young researchers are out of jobs.
Oxygen is vital to many medical procedures. But a safe, affordable supply is severely lacking around the world, according to a new report.